/*
 * Copyright (c) 2022 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { JsonElement } from '../jsonElement'
import { JsonNull } from '../jsonNull'
import { JsonWriter } from '../stream/jsonWriter'
import { JsonReader } from '../stream/jsonReader'
import { JSON_ELEMENT_TYPE } from './bind/typeAdapters'

export function write(element: JsonElement, writer: JsonWriter) {
  JSON_ELEMENT_TYPE.write(writer, element);
}

export function parse(reader: JsonReader): JsonElement {
  let isEmpty = true;
  try {
    reader.peek();
    isEmpty = false;
    return JSON_ELEMENT_TYPE.read(reader);
  } catch (error) {
    if (isEmpty) {
      return JsonNull.INSTANCE;
    }
    throw new Error('JsonSyntaxException' + error.toString());
  }
}